Changes in microbial community structure in soil as a result of different amounts of nitrogen fertilization

被引：92

作者：

Yevdokimov, Ilya ^{[1
]}

Gattinger, Andreas ^{[2
]}

Buegger, Franz ^{[3
,4
]}

Munch, Jean Charles ^{[3
,4
]}

Schloter, Michael ^{[3
,4
]}

机构：

[1] Inst Physicochem & Biol Problems Soil Sci, Pushchino 142290, Moscow, Russia

[2] Geohumus Int GmbH & Co, D-60386 Frankfurt, Germany

[3] Inst Soil Ecol, Helmholtz Zentrum Munchen, D-85764 Neuherberg, Germany

[4] Inst Soil Ecol, German Res Ctr Environm Hlth, D-85764 Neuherberg, Germany

来源：

BIOLOGY AND FERTILITY OF SOILS | 2008年 / 44卷 / 08期

关键词：

nitrogen immobilization; microbial community structure; microbial biomass;

D O I：

10.1007/s00374-008-0315-1

中图分类号：

S15 [土壤学];

学科分类号：

0903 [农业资源与环境]; 090301 [土壤学];

摘要：

The changes in size, activity and structure of soil microbial community caused by N fertilization were studied in a laboratory incubation experiment. The rates of N fertiliser applied (KNO(3)) were 0 (control), 100 and 2,000 mu g N g(-1) soil. Despite no extra C sources added, a high percentage of N was immobilized. Whereas no significant increase of microbial C was revealed during incubation period, microbial growth kinetics as determined by the substrate-induced growth-response method demonstrated a significant decrease in the specific growth rate of microbial community in soil treated with 2,000 mu g N g(-1) soil. Additionally, a shift in microbial community structure resulting in an increase in fungal biomarkers, mainly in the treatment with 2,000 mu g N g(-1) soil was visible.

引用

页码：1103 / 1106

页数：4

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